Singer Britney Spears (L) and actress/singer Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Singer Britney Spears (L) and actress/singer Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty ... more

Singer Katy Perry (R) and grandmother Ann Hudson attends the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Singer Katy Perry (R) and grandmother Ann Hudson attends the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images ... more

Larry Birkhead (R) and Dannielynn Birkhead attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Larry Birkhead (R) and Dannielynn Birkhead attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for ... more

Singer Britney Spears (C), sons Sean Federline and Jayden James Federline attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Singer Britney Spears (C), sons Sean Federline and Jayden James Federline attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by ... more

Actors Jayma Mays (L) and Neil Patrick Harris attends the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Actors Jayma Mays (L) and Neil Patrick Harris attends the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for ... more

(L-R) Actors George Lopez, Jayma Mays, Neil Patrick Harris and Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

(L-R) Actors George Lopez, Jayma Mays, Neil Patrick Harris and Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by ... more

Actor Neil Patrick Harris (L) and singer Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

Actor Neil Patrick Harris (L) and singer Katy Perry attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images ... more

TV personality Nancy O'Dell (L) and Keith Zubulevich attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty Images for SONY) less

TV personality Nancy O'Dell (L) and Keith Zubulevich attend the Los Angeles premiere of "The Smurfs 2" at Regency Village Theatre on July 28, 2013 in Westwood, California. (Photo by Michael Buckner/Getty ... more

Hank Azaria Hank, Hal Azaria and Katie Wright attend "The Smurfs 2" New York Blue Carpet Screening at Lighthouse International Theater on July 28, 2013 in New York City. (Photo by Craig Barritt/Getty Images)

Hank Azaria Hank, Hal Azaria and Katie Wright attend "The Smurfs 2" New York Blue Carpet Screening at Lighthouse International Theater on July 28, 2013 in New York City. (Photo by Craig Barritt/Getty Images)